Electric calculating machine



Feb. 16, 1937. R El Bom-ET 2,070,824

ELECTRI C CALCULAT ING MACH INE Filed Dec. 27, 1934 1o sheets-sheet 1 se l dm zgan 222 Feb. 16, 1937. R E, BOUTET 2,070,824

ELECTRIC CALCULAT'NC MACHINE 'a yFiled Dec. 27, 1954 lo sheets-sheet 2 Feb. 16, 1937.

R. E. BOUTET ELECTRIC CALCULATING MACHINE Filed Deo. 27, 1934 lo sheets-sheet s Feb. 16, 1937. l R, E BOUTET y 2,070,824

ELECTRI C CALCULATING MACHINE Filed Dec. 27, 1934 1o sheets-sneetA l l 3 z,A l 52 52 @www Feb. 16, 1937. R. E. BOUTET ELECTRIC CALCULATING MACHINE Filed Dec. 27, 1934 lO Sheets-Sheet 5 Lan@ E QZ" Feb. 16, 1937. R., E, BOUTET 2,070,824

ELECTI C CALCULATING MACHINE Filed Deo. 27,` 1954 lo sheets-sheet 6 22d C 22'" se d" e C 16, 1937. R E. BOUTET 2,070,824

` ELECTRIC C ALCLATING MACHINE Filed Dec. 27, 1954 10 Sheets-Sheet 7 Feb. 16', 1937. R, E BOUTET 2,070,824

I ELECTRIC CALCULATING MACHINE Filed Dec. 27, 1954 l0 Sheets--Sheefl 8 20 mph '57 s: E56-L- I Invenl'r 1Q Zifw'loulf Fi Swim 4MM @www Feb. 16, 1937. R, E, Boum-T` 2,070,824

` ELECTRIC CALCULATING MACHINE Filed 1386.27, 1954 1o sheets-sheet 9 I'l'lll Ill'lll l Uil clfl Feb. 16, 1937. R. E. BoUTET ELECTRIC CALCULATING MACHINE 10 Sheets-Sheet l0 Filed Deo. 27, 1954 r Patented Feb.` 16, 1937 .Ren Edmond Boutet, Paris, France Application December 27,1934, serial No. 759,387 In France February 14, 1934 l v '9 claims.` (ci. zas-923 The present invention relates to an electric calculating machine and more particularly a. machine for multiplying including a certain number of electric circuits the connections iof which are made under conditions such that after the multiplier and the. multiplicand have been entered in storage indicators and a. distributor has been set in operation which closes contacts in the order required for the successive exploration of all the 'iguresA of the multiplier and the multiplicand storage indicators, the result is auto-` matically stored in a storage indicator With'out any other member being in motion than the dis-'- tributor and the switches. l Other characteristics andpeculiarities ofthe invention will become apparent from the ensuing Fig. 3 shows a diagram .,ofthe adding circuits'` for the tens of the preceding product and vthe units of the new product. T L

Figs. ia/and 4b show a diagram of the adding v circuits of the successive results and of the storage indicators for such'results.

Figs. 5 to 8 illustrate'the current distributors.

Fig. 9 is aside elevation of one of the drums forming the switches in the various circuits of the device. n

Fig. l0 is a cross-section along the-'line X---I` of Fig. 9. l y

Fig. 11 is an end elevation ofy the device of Fig. 9. g

Fig. l2. is a view of ardetail of thedevice of Fig. 9.

j of associated 'devices-connecting up the aforesaid members under the required conditions.

.of the aforesaid members will now be successively Each described.`

I 1. Multiplicand storage-indicator This storage indicator could be constituted by a simple keyboard having a certain number of columns of ten keys, each of which would close a contactwhen it is depressed by-hand or other- Wise. However, in theexample illustrated, this storage indicator is constructed so that it can be jautomatically controlled by any suitable associatedmachine e. g. the typewriter described in number (3 in the example illustrated in Fig. la) of rows of pins: .quo gul cu2 ad" yall gdz.

[All the pins of thev same'denominational row, that is to say, those which correspond to the same denomination (for vexample'all the pins gu, gul, or gd, gdl or gc", gc1 are engaged in a link I0, Illd, II)c (Fig. 13) actuated by an electromagnet II, IId, Il. To each of the columns of pins there corresponds moreover an actuating link |29, controlled by an electromagnet I3, |31 |39. As will be seen from Fig. 14 the pins .are normally inclined and in this position, escape the action of the links I 2. On the contrary, when, by the action 'of the-corresponding link I0, all the pins of the same digital row'have been brought into the vertical position (as the pins gd5, gde, in Fig. 13) andif', the link I2, corre- Fig. 13 is a plan viewof one of the registers. i

. Fig. 14 is a corresponding elevation of the device of Fig. 13 with the front row of pins partly broken away 4to show the second row. y,

Fig. 15 is a partial end-view of same.

The device according to the invention'essentially comprises: a. multiplicand storage indicator A, a multiplier storage indicator B, a multiplicand distributor C, a multiplier'distributor D, ya group of multiplying circuits E, a storage indicator F, for the tens of each product, a group of circuits Gior adding the tens of the preceding product and the units of the new product, aregister AH for transferring these additions, a group of cir" cuits K for4 addingy the final `results having a transfer-storage indicator P, a double storage indicator L-M for the results, a certain number sponding to a1 certain column, is then depressed, it acts on the' pin, then in the vertical position, and brings it into the depressed position. In other words, the electromagnets II select the denomination and the electromagnets I3 select e the figure to be stored. `It is these two groups of electromagnets which are controlled .by the auxiliary machine.l

Each pin of the same denominational row, madey of conducting material, receives current vfrom a common to all the pins of the same digital row. Thus,

. when a pin is depressed, it establishes an electrical connection between a current lead in (bar I4) and a current lead out (bar I 6). The variousl bars I4 are Aconnected to the conductors I1, I'Id,

llc (Fig. 1a) leadingy from the distributor C,

vwhereas the bars I6 are connected 'to the wires depressed position when it has been brought there. A disconnecting device shown in dotted lines in the'form of a plate 9 raised at the right moment by electromagnets 8, restores simultaneusly all the depressed pins to their normal posiion.

2. Multiplier storage indicator B It is strictly in conformity with the multiplicand storage indicator and need not be described.

3. Multipli-Gand distributor c mav multiplier distributar D They are constituted by the device illustrated in Figs. to 8. As for the storage indicators, it has been assumed in the drawings that the ca'- pacityof the machine was limited to three figures for the multiplicand and three gures for the multiplienbut it is obvious that it could be of any capacity. f

On the shaft 26 of an electric motor 20, are mounted seven distribution cams 2|u 2|d 2| set in staggered relation; as can, be seen in Fig. 8, and `capable' of successively closing the contacts 2211 22d 22 corresponding to the denominations of the multiplicand storage indicator and of the result. On the shaft20 is also mounted a wheel 23 provided with a slot 24. On the periphery of .said wheel bears a lever 25, the opposite end 26 of which is opposite an electromagnet 21, whereas its nose 28 is capable of closing a switch 29 interposed in the circuit of the motor 20a. With this arrangement, each time the lever 25 is rocked by actingon its end 26, by means of the electromagnet 21,'the contact 29 is closed; the motor 2|]a is set in motion and the lever 25--26 is then held in its new position by the edge of the wheel 23. When, this wheel is rotated one revolution, if the action on the end 26 has ceased, the motor stops, and the lever 25 falls back into the slot 24.

1 0n the shaft 20 is also mounted a pinion 30 en` rotates'one revolution, only one of the cams 33 acts.

`, 4. Group of multiplying circuits E 'Ihis group E is illustrated in detail in Figs. 2a and 2b. The wires |81 I82 (Fig. 2a.) come from the multiplicand storage indicator A. Each of them 'is connected to an electromagnet 40 adapted to close a contact 4| supplying three conductors simultaneously. Three groups of conduc tors are thus obtained: a group 42,A a group 43 and a group 44.

With the` group 42, the function of which is to indicate the figure of the unitsof each partial product, cooperates a group of circuits 45. These 76 B, that is to say when it is desired to multiply by ducting material.

The ratio between thespeeds of the 469, 'in eahof which is interposed-a switch 411 419 which is closed when the corresponding electromagnet 48,1 489 (see Figs. 1w and 1b) is closed,' which occurs when the corresponding figure 1,

2 is stored in the multiplier storage indicator that figure. The sets 46 connect the wires of the group 42 to the wires of the group 45 in such a manner that each wireof the group 42 is connected by a denite set to the wire of the group 45 corresponding to the units gure of the product of the figure to which the wire 42 in question corresponds, by the figure to which the set 46 corresponds. For example, the wire 426 can be connected, by the set 463, to the wire 458, because (8) is the units figure in the product of (6) by (3).

The group of wires 43, the function of which is to indicate the tens ilgure of each partial product, cooperates in a similar manner with a group 49 to which it can be connected by one of the sets 50, having a. switch`i5l, closed at the same time as the corresponding switch 41. The connection made by the sets 50`is such that for example the wire 436can be connected, by the yset 503,to the wire 491, because (1) is the tens iigure in the product of (6) by (3).

Finally the group 44, the function of which is to indicate the smallest figure which must be added to the units figure of the partial product to obtain a transfer,'cooperates with a group 521 522 528, to which it is connected by the sets 531 539, having a switch 541 549 closed at the same time as the switches 41 and 5I. The connection made by said sets 53 is such that for example the wire 446 .is connected, by the set 533, to the wire 522, because the units figure (8) of the product of (6) by (3), gives a transfer when it is added to the figure (2)l or to a higher figure. :It will be seen hereinafter how this transfer indication is used. y

As can be seen from the above explanations, the three switches 41, 5|, and 54, corresponding to the same multiplier figure for example, the switches 413, 5|3, and 543, are closed simultaneously when the electromagnet' 463 is energized. All these various switches can then be advantageously constructed in the manner illustrated in Figs. 9 ,to 12. In this embodiment the nine contacts of the switch 41 considered, 413 for example, are constituted by nine pairs of blades 55. Each of these pairs of blades cooperates (Figs. and 12) with two plates 56 and 51 which are respectively made of insulating material` and con- In the same manner the nine contacts of the corresponding switch 5I3 are constituted by nine pairsl of blades 58 and the nine contacts of the switch 543, by nine pairs of blades 59, only two of which are shown in Fig. 9, it being understood that the seven others are mounted in sequence in an identical manner. p

The insulating plates 56 and the conducting plates 51 are threaded in sequence on a central axis 60 and two parallel rods 6| mounted be` tween two discs 62 which can be angularly displaced by an electromagnet 48 which, in this case, is" the electromagnet 483,(Fig. 1). When this electromagnet is not energized, a spring 63 holds the discs l|52 and consequently the plates 56 and 51 in the position illustrated in Figs. 9 and 10, in'

larly displaced, and theplates 51 electrically connect the blades of each pair. The three switches considered are then in the closed position. 'Il'here is of courseA a similar connecting device for each group of three switches corresponding to* the nine vfirst figures.

lthe electromagnets 11d, 11

5. Storage-:indicator F ,for the tens in each partial product `vThis storage indicator F illustrated atv the bottom and at the right ofr Fig. 1 is similar to the storage indicators A and B and will not be, described. The wires 49 (see Fig. 2b) each control an electromagnet 64 selecting the figure, whereas `the electromagnets 65u 65d 65c select the denomination. When a pin of said storage indicator is depressed, it establishes an electrical connection betweenv one of the current lead in Wires 66 66d |56c and one of the'lead out wires 61,1 612 i.: 610.

46. Group of circaits G adding the units to the tens of the preceding partial product These wires |i1lead, as shown (Figs. 1b and 3) to the addingmechanism G which is lformed by the group of wires 45 coming from the multiplier circuit of Fig. 2,]and` a group 68, connected to adding circuits to render operative the possible transfers. For this purpose the wires 52 can be connected. to a transfer conductor 1.2 by sets 13, the,switches 14- ofwhich are closed at the same time as `the corresponding switchesl 10. The

. switch 10 of each/set and-the corresponding switch `14 are constituted by means of a contactor sim ilar to xthe one illustrated inFig. 9.

isassumed for example that the unitygure arrivn b th vrou 45 is the ure (6)', it will be 1 g' y e g p g magnets 90 of the storage indicator M and the contacts 93 of the storage indicator L are conseen on looking at Fig. A2, that itis the wire 521 which receives current, since it is from the iigure (4) onwards that (6) gives a transfer.. Now the said wire 524 can be connected to theftransfer wire 12 by the set131and the following sets, so that the wire 12 will receive current if itis (4) or a higher figure which larrives by the group 61. It is obvious, howeverthat .this transfer cannot be introduced immediately; it is registered by the device -H andit is-d'uring the ensuing operation thatA it will be added.

For this purpose the ywire 12 is connectedto an `electromagnet 15 adapted to close a switch 16- which, when closed, completesea circuit to all of these electromagnets being energized, according to whether at. that instant the distributor closes one or the other of the switches 22d, 22c p. The electromagnetl'l which is thus energized then `closes one,L of the switches 1.8, 18m which when, the following product `is beingl calculated, causes the energization of the electromagnet. 191 instead of vthe electromagnet 19 which is energized when `there is no transfer.

Said'two electromagnets 190 and'191 act on two connection Shifters and 801, which connect the group of wires'68 toga group 8|; the shifter to `be brought back to theirnormal; position bf Y. non-transfer (position illustratediin Fig. 3).

The electromagnets 11 are suppliedthrough the instrumentalityof .switches H4, ||41 closed by.-

Thek sets 13-make-a connection such that if it i tromagnet |0010,`energilzed when the one orthe other the electromagnets H3, "3d when the corresponding switches 22 are closed.

. 7. Groap of adding circuits-K and double storage indicator LM This unit is illustrated in Figs. 4a and 4b. The group 8| which-leads from the Shifters 80 (Fig. 3) cooperated with a group 83 through which it can be connected by sets 8 4, the switches of whichare controlled by the electromagnets '96. The sets 84 make a connection such that,

for example, the wire 8|4 is connected, by the set 843, to the wire 837, since the sum of (4) and (3) is (7). The group 83 is connected to a group 81 through the instrumentality of either of the two shifters 880, 881 the rst acting when there is no transfer, the second acting when there is one. The wires of the group 81 are connected to electromagnets`89 which select thegures in Aa doubles'torage indicator, the two portions L and M of which are similar to the storage indi-v 1 alternately, that is to say that when one of ``the two stores a partial product, by means ofhthe electromagnets 89, the' other sends the Ifigure of the preceding product into the-group of adding circuits, 8|, 83, through the instrumentality of the contacts 94 and the electromagnets 86. Said two storage indicators change function alternately for each figure of the multiplier.

. In order to obtain this alternation, the electronected simultaneously. to the current lead in by the uconductors, 98 and the switch 9 6 closed by the electromagnet 91am, when the distributor of the multiplier is on 'the switches corresponding kto the tens, or to the thousands, whereas the electromagnets 9| of the storage indicator L and the contacts 92 of the storage indicator M are connected simultaneously to the current lead in by the conductors 95 and the switch 99, which is closed alternately with the switch 96, by an elecdistributor is on the units or hundre'dsn Inthe adding mechanism 8|-83 (Figs. 4a and 4b)y the transfers .are made by means of a group |0| connected by means'of the switch |020, or the switch |021, which setsback by one unit, to a group |03 the conductors of whichinclde contacts |04, closediwhen the corresponding electromagnet 89 is itself energized. Said .group |0| can be connected to` a wire |05, by sets |06, the switches |01 of which are closed at the same by the sets |06 is such that the wirewill receive current when, assuming that the switch |020 is closed,. and the switch |021 open, the sum of 'r assumed that thedistributor is on units,'the

electrcmagnet 08u is energized yand actuates the double-throw switch |09d which during'the'jfol- -60 time as the switches .85. The connection made lowing operation'will cause the 'eleotromagnet' -||01 to be energized, said electromagnetv then f closing the, shifter switches |021 and 881, instead theresult'transmitted by the group 83, which is the purpose required. The object of the shifter |021 is to control the registration of a fresh transfer when, owing to the addition of a transy fer, such fresh transfer becomes necessary.

In the above description, a certain number of parts have not been described: they will be described in the description of the operation which will now be given, assuming that it is required to multiply (86) by (67).

(86) is recorded in the storage indicator A and (67) in the storage indicator B, and the distributor is set in operation. The contact 34 of the multiplier closes and will remain closed during one revolution of the shaft 20; as in the units column of the storage indicator B it isfthe figure (7) which is stored, the electromagnt 48'I will be energized andwill close the switches 41", 51 and 547 (Fig. 2a and Fig. 2b).

I. Multiplication of the units figure (6) of the multiplicand by the units multiplier During the rotation of the shaft 20 of the distributor the first contact which is closed is the contact 22. 'I'he current then ows through the shifter I I I, closed by the electromagriet I I2, and which produces no shift, to the electromagnet I I3 which closes the switch I I4, so that the wire I1 receives current (Fig. 1a). As in the units column of the distributor A, it is the figure (6) which is stored, it is the wire I86 which receives current, and causes the closing of the contact 4I8 (Fig. 2a) which makes three circuits:

1. The wirev 42 being connected by the set 46", then in service, to the wire 452, it is the latter which receives current, (2) being the units figure of the first partial product of (6) by (7). As nothing is yet stored in the tens storage indicator F, the wire 452 is connected by the set 69 (Fig. 3) tothe. wire 8,82, itself connected to the wire 8l2 which is connected, by the set 84 (Fig. 4b) then clo's'ed, since nothing is stored in the units column of .the storage indicator M, and by the switch 88, to the wire 812. The electromagnet 892 is energized, and as, at this moment, it is the switch 99 vwhich is closed, the electromagnet 9 I is energized and the figure (2) is stored in the units column of the lefthand storage indicator L, since owing to the closing of the switch 99 which will remain closed during the whole multiplication by the units figure of the multiplier, said storage indicator L will store the results transmitted by the wires 81, whereas the storage indicator M convtrois the electromagnets 86 through the contacts 94. l

v 2. The wire 438 (Fig. 2a.) is connected, by the set 58", to the wire 494, (4) being the tens figure of the same partial productl of (6) by (7). The electromagnetiw1 is then energized, and as the electromagnet 65 is energized at the same time, the ligure 4v is stored provisionally in the units row of the tens storage indicator F. It will be subsequently totalizedwith the units figure of the ensuing partial product.

3. The wire 446 (Fig. 2a) is connected, by the set 53", to the wire 528, for showing the transfers; in view of the fact, however, that for this first product there is no addition to be made, said Wire at this tinfe does not come into operation.

Thus, at this time the units figure (2) is stored figure (7) of theg in the storage indicator F.

II. Multiplication of the second figure (8) of the .multiplicand by the first figure (7) of the multiplier The .electromagnet 487 re mains energized, but it is the contact 22d which closes, causing current to be supplied to the w'l're I1d (Fig. 1a). As it is the figure (8) which is stored in the tens column of the register A, it is the wire |88 which receives current and causes the closing of the contact 4I8 (Fig. 2a) The three wires 428, 438 and 448 simultaneously receive current.

'I'he wire 428 is connected by the set 48", then in service, to the wire 458 of the adding device G. The units figure (6) of the second partial product must now be totalized with the tens figure (4) of the preceding product; this is obtained in the following manner: the wire 68d receiving current of the units row of the storage indicator F being depressed, the wire 614 receives current; the electromagnet 1 I 4 is energized and closes the switches 1I4 and 144 (Fig. 3). 'I'he wire 458 which receives the current, is then connected, by the set 694, to the wire 88, (0,) being the units figure of the sum of (6) and (4). l

'.Ihe transfer for the ensuing product is shown due to the fact that the wire 448 (Fig. 2a) is connected, by the set 547, to the wire 524 (Figs. 2b and 3), which is connected, by the set 134, tothe wire 12. The electromagnet 15 is then energized, the switch 16 closed and the electromagnet 11d energized. The double-throw switch 18c is then brought intoft'he position in which, during the storing of the hundreds, it will control the closing of the shifter 801, as will be seen hereinafter.

As for the first partial product, the storage indicator F stores in the tens row, by means of the wire 428 and the Wire 495, the figure (5) which is th'e tens figure of the second partial product of (8) by (7).

It has therefore been seen that as (0) is the units gure obtained when the units figure (6) of said second product is added to the tens figure of the first product, it is the wire 68 (Fig. 3) which received current. As it is always the switch 80 which is in service, it is the wire 8| which receives current. Said wire 8I is connected by the set 84 and switch 88 to the wire `81, since it is the electrom'agnet 88 which is energized, owing to the fact that nothing is stored in the tens column of the storage indicator M. The electromagnet 89 is the'n energized and the figure (0) is stored'in the-tens column of the storage indicator L, since itis still the switch 99 which is closed, the distributor of the multiplier III. Storing of the hundreds figure ofthe first l partial product The electromagnet 487 remains energized, but it is the contact 22 which closes. As nothing is recorded in the hundreds column of the storage indicator A, it is the wire 42 which receives the current and transmits it to the wire 45 (Fig. 3).

.With ythe wire 66c receiving current and the pin 5 being depressed in the corresponding row of the storage indicator F, the wire 6'|5 receives current, causing the energization of the electromagnet 1 5.

The wire 45o is then connected to the wire 685. But as thedoublethrow switch 18 had been brought into the transfer position, the electromagnet 'I91 is energized, and the shifter 801 is in service, so that Ithe wire 685 is connected to the wire 8|?. As.nothingis yet stored in the hun-4 dreds column of the storage indicator M, it is the electromagnet 86 which is energized (Fig. 4), so that the wire 8|s is connected by the set 84, to the wire 836, which is itself connected, by the switch 88, to the wire 815, which causes the energization of the electromagnet 896 and the storing of the figure (6) in the hundreds column of the storage indicator L, since at thisA time the electromagnet..

9| is energized.

Thus, after the multiplication of the two ngues ing any result, since there is no gure stored in the corresponding columns of the storage indicator A, and there is no transfer pending in the device.

Then the contact 22 closes, causing the electromagnets 82 and I |6'to be energized, and the corresponding double-thrw transfer switches to be restored to the normal position. Simultaneously ,the contact 22e causes the energzation of an electromagnet |30, (Fig. 1b),.which acts on a disconnecting plate bringing back in the normal position all the pins of the tens storage indi-y cator F, previously depressed, said disconnecting plate being similar to the plate 9 illustrated in Fig. 14. On the other hand, the closing of the contact 22e controls the energization of the electromagnet |30 (or- |3|) which brings back to their normal position all the pins depressed in that storage indicator L or M which has just acted as a control member ofthe electromagnet 86.

In thedrawings it has been assumed that the multiplicand could only have three figures at the most (see `storage indicator A). Under these circumstances, only the contacts 22, 22d and 22 can be connected to said storage indicator A, through the switches 4. On the other hand, the contacts 22m, 22m, and 22cm only serve for storing the results which can of course have six figures; said contacts do not serve for the multiplicand and it is for this reason that instead of being adapted to be connected to the storage indicator A. they are simply connected to the wire 42". But it is obvious that if the storage indicator A had more than three denominations, said contacts 22111.22dm and 22cm would be, as 'are thel others, connected to said storage indicator.

The Sharma of the distributor having thus made a complete revolution, the contact 34u opens,

whereasthe cam 33d closes the contact 341i, causing the energization of the electromagnet 48.6,

I since (6) isv stored in the tens column of the Y rotate, it closes again storage indicator B, as the shaft continues to successively the contacts 22 22d vbeing, connected,^for example, to the wire 420 lBut in this case, it the electromagnet ||2 fl which is energized, putting into service the shifter Id, by means of which the necessary lshifting of one denomination is obtained, the contact 22 whereas the contact 22d is connected'to the wire I 'iuof -the storage indicator of the multiplicand `A, and so forth.

.At the closing of the contact 22, it is therefore the wire 420 which receives current, said wire being connected through the wire 45 yand switch 100 which is now closed, to the wire 68, which is itself connected to the wire`8i". Owing to the fact that it is now the electromagnet 87m which is energized, it is the switch 96 which is closed, so that the storage indicator L which, during the preceding operations, acted as a store, will now act as a transmitter of the figures to the adding device K, whereas the storage indicator M which previously acted as a transmitter will now act as a storage indicator.

ly seen that in the units column of the register L, it was the figure (2) which was entered. When the contact 22 is closed, the contact 93 there` fore receives current which is transmitted by the corresponding pin 2 to the contact 942, thus causing the energization of the electromagnet-862 and consequently the closing of the switch 852. The wire 8| which, as has been seen, receives'current, is therefore connected by Vthe set 842 to the wire 832, which is itself connected, through the switch asv then oiosed, 'to the wire 812 which causes the energization of the electromagnet 893 and the entering of the figure (2) in question in' the units column of the register M;

In fact said yfigure (2) has only passed from the column,.oi the storage indicator L into the units column of the storage indicator M. The I switch 22d then closes, the wire il is connected, ((6) being entered in the units column of the storage indicator A) to the Wire |86. 'Ihe wire 426 is then. connected by the set 466 to the wire 456 (Fig. 3). As nothing is entered in the storage indicator F, the electromagnet 'H0 is energize'd, and the wire 456 is then connected to the wire 686, then to the wire 8| 6. Now at this time the .electromagnet 86 is energized, since in the tens column (then in service),"of the storager indicator L, it is the figure (0) which is entered. The wire 8|6 is then connected by the set 84 and the switch 880 to the wirel 81. The electrowas the electromagnet 1|0 which was energized,y

so that no transfer was possible.

V. Multiplication of the seomz figure 1s) of the multiplicand by the second figure (6) of the multiplier The Contact 22c closing in its turn, the wire ||d receives current, transmits it to the Wire |85, which itself transmits it to the Wires 428, 438 and 448. The wire 428 is connected, by the set 46, to the wire 458 (Fig. 2b), itself connected (Fig. 3), by the set 693, (the gure (3) having been previously entered in the storage indicator F) 20 t has been previousis itself connected, by the set 846, (since it is the figure' (6) which is entered in the hundreds column of the storage indicator L) to the wire 83", itself connected, by the switch 88, to the wire 8T', which causes the energiz'ation of the electromagnet 897 and the entering ofthe figure (7) in the hundreds column of the storage indicator M. Simultaneously with the wire 681, the

wire 12-has receivedcurrent, since the addition` of (8) and (3)'gives (1) as the unit, and (1) as the tens; owing-to'th'is facty the electromagnet llc is energized, and the double-throw switch 73m brought to the transfer position.

Owingto the fact that the wire (I3a (Fig. 2a) has also received current, the figure (4) representingthe tens figure of the partial product of (8) --by (6) has been entered in the hundreds row of the storage indicator F. r

As the distributor continues to rotate, the contact 22m"closesl As nothing is entered in the hundreds column'f the storage indicator A, it is thewire |j8 which receives the current, and transmits it to the wire 42, which is itself connected to the .wire 45, -which is connected, by the set 594, (since the figure (4) vis entered in the storage indicator F) to the wire 684 connected,

' by the/switch 801, (since the double-throw switch 18m is inthe transfer position) to the wire 8|5. As nothing is entered in the thousands column of the storage indicator L, said. wire 8|5 is connected, by the set 84, to the wire |335,`

l itself connected, by the switch 88, to the wire 815, which energizesthe electromagnet 895 and causes the figure (5) to be entered in the thousandscolumn of the storage indicator M. Said storage indicator will therefore show'nally the number 5762,.which is actually the product of 86 x67. l v

.The distributor continues to rotate until the shaft 2D has eiected a complete revolution.. At this instant its motor 201- will stop, and a fresh operation can be carried o`ut.,

In the'ex-arnple illustrated, the addition of the figure represented by, the wire 8| receiving current (Fig. 4a), and of the igurel represented by the electromagnet 8B, has never given a ltransfer, so `that the switch 88 has always remained in service. It will readily be understood that when,

such addition gives a transfer, owing to the closng of the switch |04 corresponding to the electromagnet 89 energized, and owing to the closing` of the switch |01 corresponding to the electrol has to operate when theensuing operation takes place, duringA whichit is then the shifter`8|l1 which will be operative, and increase by one unit the iigure represented by the wire 83 `then receiving current.

The showing is for a machine suitable for having' three ordersin each of a multiplier and multiplicand whereas it is'not intended'to conf ne the invention to such` numbers or orders. Certain ofthe elements vary with the numbers or ordersas followsz- A and B,may have any desired 'number' of orders. y

Distributor C, and alsoAL"'- and M"must' have as many orders as the sum of ordersin l A and-B; thus if A and B each l'iave three orders, C, L and M must have$ix orders.

D must have one more order than B.

Therelmust be as many switches and coils |`|2 as orders B, There must be one more switch ||4 and coil ||3 as orders A.

Fmust have as many orders as A.

There must beas many switches |32 and coils |33 as orders in C. There is one less number of coils Ti and switches 18 than there are orders in (KAYY.

There is one less number of coils |08 and switches |09 than there are orders in the distributor C. Those switches from H4c to the next to highest order` have five contacts, the highest order has three contacts.

It is moreover obvious that the invention has only been described herein in a purely explana- J tory but by` no means limitative manner, andl .that various modifications of detail could be made therein within the scope of the appended claims.

. ,I claimt,

1. A calculating machine comprising a multiplicand storage indicator, a multiplier storage indicator, a product storage indicator and a tens storage indicator, electric contact means selectively operable by said multiplicand and multiplier storage indicators, a distributor adapted to send an electric current successively into each 'denomination of the multiplier storage indicator,

and, for each of said denominations of the multiplier storage indicator, into each denomination of the multiplicand storage indicator, a `group of multiplying circuits adapted to be connected to said multiplicand and multiplier storage inl dicators and giving the units figure and the tens figure of each partial product, electromechanical means for transferring said units figure tq Ifigure stored by the product storage indicator in the same denomination.

A2. A calculating machine comprising a multiplicand storage indicator; a .multiplierstorage in- ;dicator, aproduct storage indicator and a tens storage indicator, electromechanical contact means selectively operable by said multiplicand and multiplier storage indicators, a distributor A adapted to send an electric current successively into each denomination of the multiplier storage indicator, and, for each of said denominations of the multiplier storage indicator, into each `denomination of the multiplicand storage'indicator, @a group of multiplying circuits adapted to be connected to said lmultiplicand and multiplier ster--v vage indicators, and including a series of ninev electromagnets, each of which is energizedV when the digit Ato which it corresponds is entered in the multiplicand storage'indicator and the distributor connects thecorresponding multiplicand order, a second group of ten multiplicand conductcrs each ofwhich is adapted to becon'nct l by a switch to the corresponding conductor of the first mentioned multiplicand group, electrodicator, a product' storage indicator and a tens magnets Afor controlling said switches, and a series of nine sets of conductors, (one set foreach of the nine digits) each set provided with a switch which is closed when the corresponding electromagnet is energized, and which thereby connects that conductor, of said second group of ten conductors, which receives current, to a conductor forming part of a group of conductors, said latter conductor corresponding to the ligure representing'the units of the partial'product, electromechanical means. for obtaining the tens ligure of each partial product, electromechanical means for transferring said units ligure to said product storage' indicator, electromechanical means for temporarily storing said tens ligure in said tens storage indicatorf electromechanical tens adding means for adding to the units ligure of each partial product the tens ligure temporarily stored during the formation ofthe preceding product, and electromechanical means for adding to each total figure transmitted by said tens adding means the preceding ligure stored by the product storage indicator in the same denomination.

'3. A calculatingmach'lne comprising a multiplicand storage indicator, a multiplier storage instorage indicator, electric contact means selecf tively operable by said multiplicand and multiplier storage indicators, a distributor adapted to send an electric current successively into each denomination of the multiplier storage indicator, and, for each of said denominations of the multiplier storage indicator, into each -denomination I. of the multiplicand storage indicator, a group ofmultiplying circuits adapted to be connected" to said multiplicand and multiplier storage indicators and giving the units ligure and the tens ligure of each partial product, electromechanical means ,for transferring said units ligure to' said product storage indicator, ,electromechanical ymeans `for temporarily storing said tens ligure in said tens storage indicator, a group of tens adding circuits `which adds to the units ligure .p of each partial product, the tens 4ligure temporarily stored during the formation of the preceding product, said tens adding circuits comprising a 4group of wires which correspond respectively to the figure representing the units of the partialproducts ,of the4 multiplier ligures by the multiplicand Iligures, a series oly nine electromagnets,

. each of which is energizedfwhen the correspond- -ing' ligure is'entered inthe tens storage indicator 'and the distributor sends current into the latter,

and a series: of nine'sets of wires, each of which setsl is providedwith a switch which is closed when the corresponding 4electromagnet of said series ofnine electromagnets is, energized, whereby the wire lof the group corresponding to the ligure representing the units of the' partial product of the multiplier ligure by the multiplicand figure is connected to that' wire' of a gro'up of circuits which corresponds to the units figure of the sum of the ligure supplied bythe formergroup,

and" of the ligure 4supplied by the tens storage indicator, and electromechanical means 'for ad-ding to each total ligure transmitted by said tensA adding means, the preceding ligure stored `by the product storage indicator in thesamedenomination.

4. A calculating machine comprising a multisendan electric current successively into eachy denomination of the multiplier storage indicator, and, for each of said denominations of the multiplier storage indicator, into each denomination lof the multiplicand storage indicator, a group of multiplying circuits adapted to be connected to said multiplicand and multiplier storage indicators and givingA the units ligure and the tens ligure of each partial product electromechanical means for transferring said units ligure to said product storage indicator, electromechanical means for temporarily storing said tens ligure in said tens storage indicator, a group of tensadding circuits which adds to the units ligure of each partial product, the tens ligure temporarily stored during the formation of the preceding product, said tens adding circuits comprising a group of wires which correspond respectively to the ligures representing the 'units of the partial products of the multiplier ligures bythe multiplicand figures, a series of nine electromagnets,

.each of which .is energized when the corresponding ligure is entered in the tens storage indicator and the dstributor sends current into the latter,

and `as'erie's of nine sets of wires, each ofwhich sets has a switch which isclosed when the cor'- responding electromagnet of said series of ninelf electromagnets is energized, whereby the Wire ofA the group corresponding tov the'ligure representing the units of the partial product of the multi-- plier ligure by the multiplicand ligure is connected to that'wire of a group of,circuits which corresponds to the 'units ligure of the sum of the figure supplied by the former group and of tlfie ligure supplied by the tens storage indicator, a group 'of transfer wires connected, by sets of A wires providedwith-switches, when the sum of the ligure supplied by the wire of the group cor-` responding to the ligure representing theunits or the partial product and 'of the ligurersupplied .s byl the tens storagev indicator is greater than 9,

to a transfer cond'uctor which places in the'transfer position a reversing switch'which `will become operative in the course of the -following operation, to increase by one unit the ligure transmitted by the last mentionedgroup, and electromechanical means-for adding to` eachto'tal ligure transmitted by said tens adding means, the preceding ligure storedwby the product storage indicator in vthe same denomination.

5. A calculating machinecornprising a multiplicand storage. indicator, a multiplier Astorage indicator, a product storage indicator and a tens storage indicator, electric contact means selectively operable by said multiplicand and multiplier storage indicators, a distributor adapted to send an electric current-successiveplicand storage indicator, a multiplier storage in- Idicator, a product' storage indicator and a tens storage indicator, electric contact means selecy ,tivelyv operablev by said multiplicand and multiplier'fstorage indicators, a distributor adapted to 1y into each denomination of the multiplier storage indicator,.and, foreach. of said denominations of the multiplier storage indicator, into each denomination of the multiplicand` storage indicator, a group of multiplying vcircuits adapted to fbe connected to said multiplicandr and multiplier storage indicators and giving vthe units ligur'and the tensfigure of each partialA product, r electromechanical means `for trans-v rlgure representing the units of the partial product of the multiplier figure by the multiplicand iigure and of the vfigure supplied by the tens storage indicator, a series of ten electromagnets, each of which is energized when the corresponding gure is entered in the product storage indicator and the distributor sends current into the latter, and a series of ton sets of wires, each of which is provided with a switch which is closed when the corresponding electromagnet of said series of ten electromagnets is energized, whereby that Wire of said group of wires which receives current is `connected to that wire of a group of circuits which corre-- sponds to the unit figure of the sum of the'iigure supplied by the said group of wires and of the figure transferred from the product storage indicator.'

6. A calculating machine comprising a multiplicand storage indicator, a multiplier storage indicator, a product storage indicator and a tens storage indicator, electric contact means selectively operable by said multiplicand and multiplier storage indicators, a distributor adapted to send an electric current successively into each denomination of the multiplier storage indicator, and, foreach of said denominations of the multiplier storage indicator, into each denomination of the multiplicand storage indicator, a group of multiplying circuits adapted to be connected to said multiplicand and multiplier storage indicators, and giving the units ligure and the tens iigure of each partial product, electrical means for transferring-said units iig-ure to said pro-duct storage indicator, electromechanical means for temporarily registering said tens iigure in said tens storage indicator, a group of tens adding circuits which add to the units figure of each partial product, the tens iigure temporarily stored during the formation of the preceding product, and a group of adding circuits which add to each total gure transmitted by said group of tens adding circuits, the preceding gure stored by the product storage indicator in the same denomination, saidA group of adding circuits including a series of ten electromagnets, each of which is energized when the corresponding iigure is ventered inl the product storage indicator and the distributor sends currentY into the latter, said product storage indicator including -two associated storing panels, operating alternately,

for each fig-ure of the multiplier storage indicator,one as a storing panel receivingthe results from said group of adding circuits, the other as a transmitting panel controlling the energi-v zation of said series of ten electromagnets.

'7. A calculating machine comprising a multiplicand storage indicator, a multiplier`v storage indicator, a product storage indicator and ay denominations of the multiplier storage indicator, into each denomination 'of the multiplicand storage indicator, a group of multi- ,plying circuits adaptedto be connected tol said multiplicand and multiplier storage indicators, and including a series of nine electromagnets, each of which is energized .when the digit to which it corresponds is entered in the multiplier storage indicator and the distributor sends current into the corresponding order, said group of multiplying circuits giving the units figure Yand the tens iigure of each partial product, electromechanical means for transferring said units figure to said product storage indicator, electromechanical means for temporarily storing said tens iigure in said tens storage indicator, a series of nine electromagnets, each of which is energized when the corresponding rigure is entered in the tens storage indicator and the distributor sends current into the latter, a series of ten electromagnets, each of which is energized when the corresponding iigure is entered in the product storage indicator, said product storage indicator including two associated storing panels, operating alternately, for each gure of the multiplier storage indicator, one as a, storing panel receiving the results from said group of adding circuits, the other as a transmitting panel controlling the energization of said series of ten electromagnets, said distributor controlling the selection operations performed, column-by column, on the multiplier storage indicator, and for each column of the latter, the selection operations performed, column by column, on the multiplicand storage indicator, and also controlling the electromagnets selecting the denominations in the tens rstorage indicator and in the product storage iridicator, the electromagnets controlling the reversal of the functions ofksaid two storing panels, and the disconnecting electromagnet of said storage indicators and of the reversing transfer switches.

8. A calculating machine comprising a multiplicand storage indicator, a multiplier storage indicator, a product storage indicator and a tens storage indicator, electric contact means selectively`operable by said multiplicand and multiplier storage indicators, a distributor adapted to send an electric current successively into each denomination of the multiplier storage indicator, and, for each of said denominations of the mulr tiplier storage indicator, into each denomination of the multiplicand storage indicator, a group of multiplying circuits adapted to be connected to said multiplicand and multiplier storage indicators, and including a'series of nine electromagnets, each of which is energized when the digit to which it corresponds is entered in the multiplier storage indicator and the distributor -sends current into the corresponding order, said group of multiplying circuits giving the units figure and the tens figurey of each partial prod` uct, electromechanical means for transferring said units figure to said product storage indi-y cator, electromechanical means for temporarily storing said tens iigure in said tens storage indicator, a series of nine electromagnets, each of which is energized when the corresponding figure is entered in the tens storage indicator and the distributor sends current into the latter, a Series of ten electromagnets, each of which is energized when the. corresponding iigure is entered in the product storage indicator and the distributor sentis current into the latter. said 'Il product' storage indicator includingtwo associated storing panels, operating alternately, for each iigure of the multiplier storage indicator, one as a storing panel receiving the results from i said group of adding circuits, the other as a transmitting 'panel controlling the energization of said series of ten electromagnets, said distributor controlling the selection operations performed, column by column, on the multiplier `storage indicator, and lfor each column of the latter, the selection operations. performed, column by column, on the multiplicand storage indicator, and also controlling the electromagnets selecting the denominations in the tens storage indicator and in the product storage indicator,

` the electromagnets controlling the reversal of the functions of said two storing panels, and the disconnecting electromagnet of said storage in-A dicators and of the reversing transfer switches, said storage indicators comprising panels of pins which have an electrmagnet for each column and an electromagnet for each row, said electromagnet enabling any of said pins to be brought into the closed position, such pin thereby closing the corresponding contact.

9. A calculating machine comprising a multiplicand storage indicator, a multiplier storage indicator, a product storage indicator and a tens storage indicator, electric contact means selectively operable by said multiplicand and multiplier storage indicators, a distributor adapted tosend an electric current successively into each denomination of the multiplier storage indicator,

and, for each of said denominations of the mul- `in the multiplicand storage indicator, said two spindles rotating at relative speeds such that for a selecting operation performed in one denomination ofthe multiplier storage indicator, a selecting operation is performed in all the denominations of the multiplicand storage indicator.

' REN EDMOND BOUTET. 

